Ariston Europrisma ANDRIS15U 3kW 15 Litre Under Sink Water Heater

This Ariston Europrisma ANDRIS15U 3kW 15 Litre Under Sink Water Heater is a technologically advanced, versatile water heater. Ideal for localised use to heat mains water efficiently.

Photo for illustration only, colour and unit may differ in design to image shown.

Often used in small business units where it is impractical to install a large boiler system or extend any existing hot water system. In commercial washroom settings, it is often installed within a vanity unit and is used to supply hot water through a single or multiple TMV3 valves to basin mounted mixer taps. This unit will provide 15 Litres of hot water and has a reheat time of 26 minutes (at 50 degrees) when the full 15 Litre capacity is expended.  

When Do You Need to Use The Ariston Europrisma Expansion Kit?

When water is heated it expands, so an allowance must be made for the extra volume that is needed for hot water. Current Water Regulations allow unvented water heaters with a capacity of 15 litres or less to accommodate the expansion of water that occurs during the heating cycle in the system pipework. But this means that you need sufficiently long pipework run to achieve this. To achieve this the pipework between the last cold water draw off and the water heater must be of sufficient volume to accommodate the expansion. For 15 mm pipe plumbing this distance of pipe needs to be at least 4.2m and in 22 mm pipe plumbing this distance must be at least 2.2m.

• Ariston Pressure Reducing Valve (Kit B) for more information including when or how to use please click here.
• Ariston Discharge Tundish (Kit C) for more information including when you need a discharge tundish please click here.

If you do not have a sufficiently long pipe run you will need to install an Ariston Europrisima expansion kit (Kit A) with non-retun valve (non-return valve is included with the Kit A expansion kit). If the mains water pressure may exceed 3.5 bar a pressure reducing valve (Kit B) should also be installed.

We do however recommend you use a Discharge Tundish (Kit C) with all installations but for further information on this or the other configurations please see the download forms below.

Features:

• For Undersink Installation
• Capacity 15 Litres
• Voltage: 240V Single Phase
• Power Rating: 3 kW
• Max Temperature: 80 degrees
• Reheat time (AT= 50 degrees C): 15 Ltr 3Kw = 18 Min
• Dimensions: Height: 350mm x Width: 350mm x Depth: 300mm
• Unvented cold water feed
• Quality Steel Tank With Exclusive vitreous enamel Coating (Glass Linning)
• Large magnesium anode
• CFC free polyurethane thermal insulation
• Regulation thermostat equipped with safety thermostat
• External temperature control
• Heating indicator light
• Front access for ease of maintenance
• Simple installation
• 3 years manufacturers tank guarantee (1 year on electrical components)

If any doubt as to installation please download the Ariston Europrisma Water Heater Installation document.

Product codes:

• EP15UR - Ariston Europrisma ANDRIS15U 3kW 15 Litre Under Sink Water Heater
• ARISTON-KITA - Ariston Expansion Vessel (Kit-A) and Non-return Valve 2ltr
• Ariston-KITB - Ariston Pressure Reducing Valve (Kit B) for Water Heater
• Ariston-KITC - Ariston Discharge Tundish (Kit C) for Water Heaters